Blood Spatter Patterns

Blood spatter is a collection of blood spots, which may be different sizes and shapes depending on how they were formed. Blood spatter differs depending on the amount of blood, the speed of the drop, the angle at which it hits the ground, and the distance the drop travels.

Alka-Seltzer Rocket

Make Your Own Marshmallows

Ancient people used a plant to make marshmallows, but that’s not how we make them today. If you’ve never created your own marshmallows before you’re in for a treat! They’re easy to make, and they taste fantastic!

Sending Signals

Neurons send signals by releasing chemical neurotransmitters across a synapse, the space between neurons. The axon terminal releases the neurotransmitter, which moves across the synapse and attaches to receptors on the dendrites of a nearby neuron. This generates an electrical signal that goes to the neuron’s cell body. If enough input signals are received, the cell body produces an. . . MORE

Converting Units

Chemistry uses many types of measurements. Some of the most common include distance, mass, time, temperature, volume, density, pressure, amount, concentration, energy, velocity, molarity, viscosity, and electric charge. Each of these can be measured in different ways. For example, mass can be measured in pounds, ounces, grams, and kilograms. Because of these differences, chemists must know how. . . MORE